ARITHMETIC PROGRESSION 3

The 1st term of arithmetic progression is 13 and the common difference is 40. Find the nth term

solution

A1=13, d= 40, n=?

An =A1 + (n-1) d

An=13 + (n-1)40

An=13 + 40n -40

An=40n + 13-40

An=40n – 27

Hence the nth term is An=40n – 27  

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The 1st term of arithmetic progression is 44 and the common difference is 67. Find the nth term.